Denture attachment



I 638 553 Aug. 9,1927. '7 STERN 1,

QENTURE ATTACHMENT Filed Nov. 24. 19524 INVENTOR Isidore filer/1Fatented Aug. 9,1927; 7

ISIZDOBE STERN, or N wa ure} i :DENTUBLE A'r'rAoHMEn'r.

Application filed November 24, 1924.. .se'r'i i mean ng This, inventionrelates r01 dental bridge-- work, and more, particularly to improvementsin adjustable denture attachments or adjustable .anchor headsfor use inconnec- 5 tionwith removable bridgework; An object of the invention is 7an improved denture attachment or denture anchor: head which. may ,1 .beadjusted 1 from time to time to produce a firm andsnug fit- 10 tinrelation between a brid e and ier tooth which ordinarily supports saidbridge and particularly an objoctis' to produce. an im-.

' proved adjustable denture-headtogether with a receiving sockettherefor of such improved;constructionthat said anchor head ts into thesocket with alternately superimposed oppositely pressing wings. To

this. end my improved denture attachment possesses instrumentalitiesarranged in such a manner that front and rear wall" pressure is set upin the socket by virtue of a plurality of superimposed oppositelydiverging wings; this arrangement produces a characteristic spreadingcontact throughout the 2 full length of the. socket .for rather thancause the adjustable element to bear against one side of the socket ascommon with most adjustable dentures, I provide a plurality of bearingwings, a number of which yield- 3 ingly press one socket wall and anumber of which yieldingly press the opposite wall of the socket.

lhe accompanying drawing illustrates an 7 embodiment of the inventionserving to 5 illustratethe principle thereof, and it is understood howchanges maybe made with out departing from the scope of the invention.

Figure 1 shows an assemble d view of the 40 bridge and pier teeth. j

Figure 2 illustrates a side view of the im proved denture before thehead thereof is split in a plurality of places to provide several wings;and Figure '3 illustratesthe head after being split to form severalwings. Figure illustrates a cluster view of the attachment showing atop, rear and side elevation thereof.

Figure 5 shows the denture attachment in perspective view with thesuperimposed plurality of wings adjusted to press against the socket inalternate opposite directions.

Referring to the assembly view in the drawing, there is shown pier teethP with the edentate space therebetween filled in by the artificial andremovable bridge B. A

to produce elements -10, the combination shank and: w ng. elements,produci ng neffect T-shaped socket 7 and then the other.

principle of construction and'so I have described how the plurality ofsuperimposed socket 7- is usually built an s V r I it is theusualjpractice,to'Sjoinjthe shank? to the bridge B and thus causetheheadp'art of the denture to fitdoum intothe socket 7. 3

I Referringfurther. to the drawings 'for-a.- deta leddescriptionofthe-.invent1on,"there is jshown a. shank-,9 to whichisintegrally madea plurality of cross separable -wing}v denture head.:The. ;independent; wings; 10 i are'formedv by-the dividingcleftplanesori I slots 1 2;- whieh-forrnitheplurality 'offsepara, ble wingelements lO,a s aforesaid, andthe several wings on each sid-efspread outfrom the-shank-one above the'otlier; -The wingso may bejsettoanyposition desired. For example the ;-respective tips: of 3 the wings-10 on one level maybe set at a slight angle to the shank, whilethewings 10 on an adjacent level may be adjustably set at a similarlyslight angle to theshank 9 but the angle made by these last mentionedwings is preferably disposed oppositely to series of superimposed:wings, act in oppo-' sition to each other and press in alternatesuperimposed planes one above the other against first one side of thewall of the 5 While the: invention maybe adapted t various forms ofdenture anchor heads, the 'T-shaped head lends itself admirably to thisWings spread out to eithersidefof the shank. 9 which is used to anchorthe denture head toabridge. w r 1 Increased strength and durability inuse" are inherently gainedv in this improved, denture head for it isobserved that the line i 6f joinder between the shank 9 andwings 10 ispreferably not interrupted, by the I cleavage planes 12 since theslotsor cleavage lines run from the outer marginsr'to the planes includingthesurfaces of the shank and stop there. While the head may be cutall'the way through from edge to edge, I 4 i have shown it as cut onlytothe shank which leaves the maximum volume of stock at the meeting planesof the head and shank with resulting strength in this improved denturenot possible in other adjustable dentures. Y

The .cleavage planes or lines of cuts are extended along planes disposedhorizontally assuming the shank is vertica1.,-In;other.

80 the angle of the first wing. In this way the Words the plane of theshank Q' a'nd the cleavage planes 12are substantially right angular, theeffect of which is to project the body of the shankforwardlythrouglrthevvings thereby' positioning the Wings to either sideof the shank, In this way each wingwisin-p Vdividually joined at itsinner edge tothe shank and as many Wings-as desired may be-= formed toeither si deof the shank; Though it is preferable to make an equalnumber of wings on eachside ofthe 'shank,'it is apparent? that this isnot strictly necessary.

I It'is apparent that this invention incorporates features ofexceptionalmerit in pier tooth-socket and the shank'is adapted to besecured to av dental bridge, said head being formed With a plurality ofhorizontal slots extending,respectively from the edges of thehead'inwa'rdly to the vertical planes including the sides of the shank'a'nd'defining a plurality of superimposed Wings upon op positesides ofthe shank adapted to be alternate-ly lfset in oppo'sitedirections from rthe vertical median plane of the head to a'l-v ternatelyjyieldinglyengage each of theopposed Walls of the pier tooth socket at a pluralityof points:

2. A- denture attachment 7 for removable bridge-"Work comprisingasupport,-T-shaped in horizontal cross section, Whereofthe head 7 isadapted to be received 111 a pler tooth socket andthe shank is adaptedto be secured- With aplurality of horizontal slots extending,respectively,fromthe edges of the head inwardly to the vertlca-l planesincluding the sides'ot the shank, and defining a plurality oi the shank,respectively adapted to be alternately displaced at an'angle to the vertical'meclian planeof the head in opposite directions toengage opposedwalls 'of the pier tooth socket at a plurality of points.

In testimony WhereofI aflixmy'signature.

40 to a dental bridge, said headbeingform'edf '1 I of superimposed Wingsupon opposite, sides ISIDORE 'STERNR

